User’s Manual
4-15
Threshold
Used to convert a grayscale image to a
bi-tonal image. The value ranges from 0 to
255. A low threshold value produces a
lighter image, and can be used to subdue
backgrounds and subtle, unneeded
information. A high threshold value produces
a darker image, and can be used to help pick
up faint images.
Adjust the threshold setting by dragging the
Threshold sliding bar to the left or right to
achieve the desired threshold setting.
200 dpi,
Threshold:50,
Brightness: 0
200 dpi,
Threshold:100,
Brightness: 0
Summary of Contents for DF-1002S
Page 1: ...Bookedge Scanner User s Manual Regulatory model DF 1002S Avision Inc ...
Page 27: ...User s Manual 4 5 ...
Page 36: ...User s Manual 4 14 Error Diffusion Image Dynamic Threshold Dynamic Threshold AD ...
Page 39: ...User s Manual 4 17 Normal Photo Document Threshold 230 Normal Photo Document Threshold 230 ...
Page 51: ...User s Manual 4 30 The Compression tab dialog box ...
Page 53: ...User s Manual 4 32 ...
Page 57: ...User s Manual 4 36 The Color Dropout dialog box ...
Page 117: ...User s Manual 8 7 Figure 8 6 ADF Roller ADF Pad ...